filipino-americans are fond of giving relatives and friends back in the philippines lots of stuff and to save cost on expensive crates and air freights, they devised the cheaper balikbayan box (an expanded rectangular carton with different measurements) to be filled with lots of stuff (like chocolates, canned goods, shirts, bags, perfumes, jeans, house hold items and a lot more) that can be delivered via shipping to the philippines via door to door delivery. you will lots of Balikbayan Boxes (large cartons) in many supermarkets and grocieries in the Bay Area.